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Show 1899.] BATRACHIANS OF THE MALAY PENINSULA AND SIAM. 905 Size. A good specimen with hind legs developed was in total length 37*5 mm.; length of body 13*5 mm.; width of body 10 mm.; length of tail 24 mm.; depth of tail 11 mm. The toes are fully webbed and tips well dilated. 28. MICROHYLA INORNATA Blgr. Microhyla inornata, Blgr. P. Z. S. 1890, p. 37. This little frog was described from specimens obtained by Prof. Moesch near Deli, Western Sumatra (P. Z. S. 1890, p. 37); subsequently it was found at Palon, Pegu, by Signor Fea (Blgr. Ann. Mus. Civ. Genova, 1893, p. 39), and near Bangkok, Siam, by the late Dr. E. Haase (Boettger, Zool. Anzeiger, 1893, no. 433, p. 430). I have not met this species alive myself, but I received a number of specimens said to have been caught at Chantaboon, Siam. Distribution. Burma, Siam, Sumatra. 29. MICROHYLA LEUCOSTIGMA Blgr. Microhyla leucostigma, Blgr. Ann. & Mag. Nat. Hist. (7) vol. iii. 1899, p. 275, pl. xii. fig. 1. I obtained three specimens in the Larut Hills, Perak, at an elevation of 3500 feet in April 1898 ; two of these (the types) are now in the British Museum, and the third in the Raffles Museum at Singapore. A pair w*ere caught in copula: as the mode of embrace does not seem to have been recorded for any Asiatic Engystomatoid Batrachian, it is interesting to note the embrace was axillary, and the fingers of the male did not meet on the breast of the female. Colour (in life). Above intense iridescent black, with very small scattered bluish-white spots, which get larger towards the sides and in the anal region. Below very rich dark brown (blacker on the throat, redder on the belly and thighs), nearly covered with large very distinctly defined spots of intense yellow. Upper surface of limbs reddish brown, with black cross-bars, and thickly studded with very small white spots. Upper surface of hands and feet brown, with bright yellow spots. Lower surface of hands and feet reddish brown. Iris very dark brown, very minutely spotted with pale gold. Pupil circular. The sexes do not appear to differ in coloration. Size, d • Snout to vent 25 mm.; arm 14 ; leg 39. 2 . Snout to vent 27 mm.; arm 15*5 ; leg 40*5. Distribution. Malay Peninsula (Perak). Mr. Boulenger informs me the same frog has been discovered in Borneo, on the Baram river, by Mr. C. Hose. 30. MICROHYLA PULCHRA (Hallow.). Microhyla pulchra, Blgr. Cat. Batr. Sal. p. 165. M. Mouhot obtained this species in Cambodia, and I found a single specimen under a stone in the Dong Phya Fai, Siam, in |